NZPPS   ·  Journal home   ·   Past issues  ·  This volume   ·   Previous abstract   ·   Next abstract

New Zealand Plant Protection 63 (2010): 84-89

Germination of seed from five broadleaf weeds after burial for up to 28 years in two soils

T.K. James, A. Rahman and P. Trivedi


Some herbaceous broadleaf weed species are major weeds of pastures and are difficult to manage with ongoing re-infestation from the persistent soil weed seedbank. In this study, seeds from five weed species were collected in 2009 from two sites where they had been buried at three depths since 1981. The species were Scotch thistle (Cirsium vulgare), Californian thistle (Cirsium arvense), nodding thistle (Carduus nutans), ragwort (Jacobaea vulgaris) and giant buttercup (Ranunculus acris). Very few of the seeds were viable after being buried for 28 years in a clay soil, while in a sandy soil seeds of the three thistle species remained viable when buried at 200 mm depth. It is estimated that these seeds may remain viable for up to 66 years.

Keywords: buried seed, seed longevity, weed seed, burial depth, soil seedbank, Californian thistle, nodding thistle, Scotch thistle, ragwort, giant buttercup.

Related articles
pdfAdaption of a technique for the accelerated ageing of weed seeds to evaluate their longevity
C.A. Dowsett, T.K. James and P.D. Trivedi (2012)
New Zealand Plant Protection 65: 69-73
pdfSurvival of Scotch thistle seed buried at three depths in four New Zealand soils
T.K. James and A. Rahman (2003)
New Zealand Plant Protection 56: 113-117
pdfEstimating economic losses due to pasture weeds
G.W. Bourd˘t and D.J. Saville (2002)
New Zealand Plant Protection 55: 106-110
pdfGiant buttercup (Ranunculus acris L.) control in dairy pasture using a mycoherbicide based on Sclerotinia sclerotiorum
I. Harvey and G. Bourd˘t (2001)
New Zealand Plant Protection 54: 120-124
pdfLongevity of buried ragwort seed in four soils
T.K. James and A. Rahman (2000)
New Zealand Plant Protection 53: 253-257
pdfSurvival of giant buttercup seeds buried at different depths in four soils
T.K. James and A. Rahman (1999)
Proceedings of the NZ Plant Protection Conference 52: 234-239
pdfSurvival of nodding thistle (Carduus nutans) seed buried at different soil depths in four soils
T.K. James, A. Rahman, D.A. Wardle and K.I. Bonner (1998)
Proceedings of the NZ Plant Protection Conference 51: 33-37

Copyright © 2010 New Zealand Plant Protection Society (Inc.).

Please refer to the terms of use.